Automatic storm-sash operator



Dec. 11,1923.

- C. W. KNIGHT AUTOMATIC STORM SASH OPERATOR 2 Sheets-Sheet 1 Filed Aug. 16, 1922 Dec. 11 1923.

(1. w. KNIGHT AUTOMATIC STVORM SASH OPERATOR Filed Aug- 16. 1922 2 Slieets-Sheet 2 FT. l3 9 4 27 4, 6 28 4 53 v h/MM u/Mk PatentedDec. 11, 1923,

UNIT-ED era-Ties? Paras T? orifice;

CHARLES W. KNIGHT, 01" armivnnronrs;MINNESOTA.

AUTOMATIUST OBM-SASH OPERATOR.

Application=filedv-August 16, 19221 Serial 'lqo.i-582,285{ v To all ha/1.0727, it may con oernr.

Be it known that LCHAnLns-VV; Kmerrr, 1 a citizen elf-the United States, residing: at

Minneapolis, in the county of Hennepin and Statepf Minnesota, have-invented certain new-and useful Improvements in Automatic StornrSash ()perators; andl dohercby declare the following to be a full,clear, and exact description 10f the 1I1VQIltlOI1, such as will enable others skilled in the art to which.

it appertains to make and use the same;

My inventioirrrelates (to automatic storm: sash operators-of the'type Wlnch connectsan inside sliding,window sash to: a swingmg storm sash, whereby the openmgyand closing movements of the. window sash will lmpartlike movements toythe storm sash-,:

thus avoiding the effort" and inconvenience of opening andaclosing.thejstorm sash lIld: pendently of the opening and closing,- of the Window sash...-

There are numerous devices on-the market intended to'open, close and fasten a swinging storm sash, but' all aremoreor less objectionableor-imperfect in certain =ways. Most of these (lGVlCQSIGClllllTG separateoper ations, from those to open-or close a sliding.

wi-ndowsash, for openingjandpclosinga storm sash, and do not provide (for opening;

the storm sash to any fractional degree. .-de-' sired and holding llllQ/SELIDG firmly in such 1 position. Those devices that do provide foroperat-ing' a stormrsash from; a sliding windowsash do not provide for a direct out ward push, from the Window casing, on-thex storm sash in the direction it swingsopen;

nordo' they provide for a direct inward pull, from :the* Window casing, upon the" storm sash in thedirect1onr1t swings closed,

itIlCli-lihllS do nothave sufficient force to infallibly opeirthe storm .SflSh'Qilf it is stuck, i

swollen, or frozen to theflw'indowframe in which it is mounted, nor do they infalliblyclose. the stornr sash upon its seat in, the v window 'frame, it it .tends to stick.

The 131111121'}"0b]6t of'myinven-tionzis to overcome the abovedeficiencies-and pro-" vide 311- operator that s will exerta positive increased pressure r on: the! storm sash .zgdie; a rectly -:outward .fIOIIll'jlihB iwindow casing during the initial." opening- 'moven1ent,: to start-the storm sash fromtits seat in; the:

windowframe in which it ismounted', and... will also exert a positive increased:pressure on. ;.:the;; storma sash; idirectly:rinwardstowand movement'to :draw 'the same into 'its .seat. A further object of the inventionis to apply a direct pushing force to the stormsash in the direction'rit swings open, and to apply" a direct pulling force thereto in the direction it swings closed. A still furtherob ject ofthe invention is to provide a storm 'thewindowcasing, cluring-;itsfinahclosingsashuoperator that will firmly hold such a sash in position,-whether closed, open, or Q Fig. 1 is a fragmentary view of a windovw frame in which .is mounted an inside 'slid 111g lower window sash and a swinging storm sash to which sashes the inventionisapplied; 7

Fig. 21s a view corresponding toFig. l

with the exception; that thetwo sashes J are open;

F g- 3 1s a l'ragmentary-detail v1ew w1th Some parts sectioned on the line 3-8 of 1.?,...Z,'on an enlarged scale,

1 1g. 4; IS a fragmentary: detail View with some parts sectioned on the "line-44t:of'

Fig. 2, onan enlarged scale; and

gi 1s a detail v1ew in sectio tak scale. c V

The numeral 6 indicates a windowframe, entirety, with: the exceptionof its water table 7 and parting strip 8 between upper-and lower vertical sliding windowsashes, only the latter'of which is. shown and indicated by the numeral 9. This window frame;- 6 hasi air outside ;casing .10

which aitords anendless stop againstiwhich a. StOI'IHZSflShTll. is seated,;when closed and':

which storm: sash is attached,'ataitsluppere end, to said casingby the customary -separahlehinges,;not.shown,;for outward swing ing movement. The lower horizontatiedg 'on the'line 5-5 of Fig.1, on an' enlarged of the two sashes 9 and 11 are beveled to snugly fit against the water table 7 when said sashes are closed. The parts thus far described are all of standard construction and have been illustrated simply for the purpose of showing the inventionapplied in working position. 7

Referring now, in detail, to the improved automatic stormsash operator, the numeral 12 indicatesa bell crank having offset arms, one of which affords'a cam-acting latch 13 and the other of which affords a crank'arm 14. A- latch-actuating rod 15;has one of its ends attached to the crank arm 14 by bending the same laterally to atlord'a trunnion 16 mounted in an eye 17 formed in the free end of said crank 1 arm. This trunnion 16 is flanged at 18 to prevent its removal from the eye 17. The bell crank 12, at its intermediate portion, is mounted on a bearing plate 19 and pivotally secured thereto by a rela- V tively narrow hinge strap 20 which overlies the intermediate portion of said bell crank between the latch 13 and crank arm 14.

'the bearing plate 19. In securing the hearing plate 19 to the swinging sash 11, one of its vertical edge portions is closely positioned to the casing 10, and to align and properly 1 position the anchor plate 23 to the sliding sash 9 in respect to the bearing plate 19, said anchor plate is provided with a pair of vertically spaced prongs 25, the tree ends of which are closely positioned to the parting strip 8. On the vertical edge of the anchor plate 23'between the prongs 25, is an outstanding bearing flange 26, and on the other vertical edge of said anchor plate,- is an outstanding guard flange 27 having, at its intermediate portion, a notch-like passageway 28.

The latch-actuating rod 15, at its lower end portion, extends between the two flanges 26, and 27 and is laterally bent to afford a trunnion 29 which mounted in a bore-like scat 30 in the bearing flange 26 and transversely aligned'with the passageway 28.

This trunnion "29 is free "for 1'61110"2ll from its seat 30 by a lateral movement of the latch-actuating rod 15,; but is held against such removal by the guard flange 27 except when saidrod is opposite the passageway 28, and at which time the latch-actuating rod 15 is in a horizontal position, shown 7 1n Fig. 2, 1 r

raised against (Jo-operating with the latch 13 is an abutment31, secured, by screws 32. to the medial surface of the casing 10 and having a pocket 33 in which said latch extends when the sashes 9 and 11 are closed. This pocket 33 is formed by upright laterally spaced in nor and outer flanges 3 1 and 35. respectively, on the vertical edges of the abutment 31, and which flanges extend transversely of the movement of the latch 13. It is important to note that the outer flange is relatively short in comparison with the inner flange 34: and terminates short of each end of said flange 35.

A U-shaped retaining spring 36 for bold ing the latch 13 in a predetermined position, when the sashes 9 and 11 are open, is attached to the stop 22 by inserting its prongs in notches formed in the upper horizontal edges'o'f said stop and with its transverse portion extendin along the back of said stop. The free ends of the prongs of the retaining spring 36 are drawn together and are free to slide, the one upon the other, and are located. midway between the latch 13 and crank arm 14. The prongs of the retaining spring 36 are outwardly bulged to afford humps 37, one of which is engaged by the crank arm 1st during the opening and closing movements of the sashes, to move said spring out of the path of the movement of the crank arm 14. When the sashes 9 and 11 are open, the hump 37, adjacent to the crank arm 14, holds said cran r arm against the stop 22 and which crank arm, in turn, holds the latch 13 raised in a. position to pass over the outer flange 35 and into ongagement with the inner flange 34 during the closing movement of the sashes.

While only one of the automatic storm 'sashoperators has been shown in the drawings, it is, of course, understood that there will be two employed, in actual usage, on each stornrsash. The anchor plate 23 and abutment 31 are so designed that they may be used either on the left-hand or right-hand side of a window, simply by turning the same, end forend. The bell crank 12 must be made in lefts and rights and used on the respective stiles of the swinging sash, but the bearing plate 19 and hinge strap 20 may be used on either of said stiles. The retaining spring 36 is so designed that one of the humps 37 will always engage the crank arm 11 in either of its reversed positions.

The operation of the improved storm sash operator maybe briefly described as follows: As'previously stated. when the window sash 9 is in a raised position, the storm sash '11is securely held open and against rattle, by the improved operator. and at which time, the latclractuating rod .15 is in a horizontal position and the latch 13 held raised by the crank arm 14, which, in turn, is held the stop 22 by the retaining llii spring 36. In lowering thewindow sash!) to close the same, the storm sash 11 is simultaneously drawn toward a closed positionby the improved.operator, and, when nearly closed, the latchi13 passes overthe flange 35, engages the flange 34, which cams said latch into the pocket 33, swings the bell crank 12 on. its hinge and releases the crank rm 14 from the retaining spring 36 and, during tlie final closing movement of the window sash 9, the rod .l5fswings the latch 13 into camming engagement with the outer flange 35, which, with greatly increased force overthe previous pulling action on the storm sash 1.1 to close the same, draws said storm sash with a direct pull into its seat in the window frame 6. With the operator in this position, the storm sash 11 is securely held locked in a closed position.

When the window sash 9' is'opened, the initial lifting movement thereof, acting through the latch-actuating rod 15, will swing the bell crank 12 on its hinge and bring the latch 13 into camming engagement with the flange 34:, and thereby, with great force, which is applied directly to the storm sash 11, will force the same from its seat in the window frame. This movement of the latch 13 is limited by its engagement with the stop 22, which positions the latch 13 to be releasably held by the retaining spring 36.

After the bearing plate 19 and hinge strap 20 are once secured to the storm sash 11 and the parts carried thereon, and the anchor plate 23 secured to the sliding sash, and the abutment 31 secured to the window casing, said parts are permanent and do not have to be changed. In applying the storm sash to the window frame and removing the same therefrom, it is only necessary to hold the same in. an open position, so that the rod 15 is exactly horizontal after it is attached to the window frame by its separable hinges, and move the free end portion of the latchactuating rod 15 laterally through the passageway 28 to insert its trunnion 29 into the seat 30 or remove the same therefrom, as the case may be. 1 s

I do not wish to be confined to the precise manner of mounting the fastening device illustrated herein. or to the shape of the fastening bar or the cam-acting latch, as in. various ways the details may be modified and still be within the scope of my invention.

The above described invention has, in actual usage, proven highly efficient for the purpose had in view.

lVhat'I claim is:

1. The combination with a window frame, a sliding sash and a swinging sash mounted in the window frame, of a pivoted. cam-act; ing latch on the swinging sash, a latch-actuating rod attached to the sliding sash, and an abutment on the window frame with which said latch engages during the opening movementsito the. swinging, sash.-

The structure defined inclaim 1 in] further combination with a stop-iforlim-iting the ,movement of therpivoted can'i-acting latch during .the opening movement of the sliding sash.

3. Thestructure. defined in claim 1 in furthercombinationtwith means for relcas-.

ably-holding said- (latch during the opening. movement of the sliding sash and from which means said lat'ch is released by the final closingmovement of the sliding sash.

4. The structure defined in claim 1 in further combination with a stop for limiting the movement of the pivoted cam-acting latch during the opening movement ot the sliding sash, and means for releasably holding said latch when positioned by the stop and. from which means said latch is released by the final closing movement of the sliding sash. 1

The combination with a window frame, a sliding sash and a swinging sash mounted in the window frame, of a pivoted camacting latch on the swinging sash, a latchactuating rod attached to the sliding sash, and an abutment on the wlndow frameand having a pocket in which said latch projects when said sashes are closed, said latch being arranged to engage the abutment when the sliding sash is raised to impart th initial opening movement to the swinging sash and to position said latch to enter said pocket during the final closing movement of said sashes, said latch also being arranged to engage the abutment during the closing 'movement of the sashes to impart the final closing movement to the swinging sash.

6. The structure defined in claim 5 in further combination with a stop for limiting the movement of the pivoted cam-acting latch during the opening movement of the sliding sash, and a retaining spring for releasably holding said latch when positioned by the stop and from which retaining spring said latch is released by the final closing movement of the sliding sash.

7 The combination with a window frame, a sliding sash and a swinging sash mounted. in the window frame, of a pivoted. cam-actii'ig latch having a crank arm, a latchactuating rod connecting said arm to the sliding window sash, and an abutment on the window frame having a pocket into which said latch projects when said sashes are closed, said latch being arranged. to engage the abutment when the sliding sash is raised to impart the inital opening movement to the swingingsash and to position said latch to enter said pocket during the final closing movement of said sashes, said latoh also being arranged to engagethe abutment during the closing movement to the sashes to impart ill) "the final closing movement to the swinging sash. l

8. The structure defined in claim 1 in further combination with a, stop for limiting the movement of the pivoted cam-acting latch "during the opening movement of the sliding sash,-and "a retaining spring having a hump over which a part on said latch moves; during the opening and closing movements'of said sashes said hump being adapt-,4 ed to releasably hold said latch in a predetermined position after the initial opening movement of the sashes and from which hump said latch is released by the final closing movement of the sliding sash.

9. The structure defined in claim 8 in which the retaining spring is provided with two humps and in which the latch is reversibly held in respect to the retaining spring.

In testimony whereof I afiix my signature.

CHARLES W. KNIGHT. 

